US9181659B2 - Compositions having increased concentrations of carboxymethylcellulose - Google Patents

Compositions having increased concentrations of carboxymethylcellulose Download PDF

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US9181659B2
US9181659B2 US13/650,892 US201213650892A US9181659B2 US 9181659 B2 US9181659 B2 US 9181659B2 US 201213650892 A US201213650892 A US 201213650892A US 9181659 B2 US9181659 B2 US 9181659B2
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cmc
solution
alkali
viscosity
weight
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US20130192492A1 (en
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Neil Argo Morrison
Anssi Kalevi Kamppinen
Andries Hanzen
Marko Juhani Kanniainen
Anne Irmeli Rutanen
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Nouryon Chemicals Finland Oy
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CP Kelco Oy
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Priority to CN201280040763.8A priority patent/CN103814049B/zh
Priority to DE12783545.2T priority patent/DE12783545T1/de
Priority to ES12783545.2T priority patent/ES2509966T3/es
Priority to JP2014535125A priority patent/JP6401058B2/ja
Priority to PT12783545T priority patent/PT2768864T/pt
Priority to KR1020147005656A priority patent/KR101847563B1/ko
Priority to MX2014002134A priority patent/MX342842B/es
Priority to BR112014003890-2A priority patent/BR112014003890B1/pt
Priority to PCT/EP2012/070545 priority patent/WO2013057132A1/en
Priority to TR2018/15761T priority patent/TR201815761T4/tr
Priority to EP12783545.2A priority patent/EP2768864B1/en
Priority to CA2843613A priority patent/CA2843613A1/en
Publication of US20130192492A1 publication Critical patent/US20130192492A1/en
Priority to US14/862,198 priority patent/US9963558B2/en
Publication of US9181659B2 publication Critical patent/US9181659B2/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00—Preparation of cellulose ethers
    • C08B11/02—Alkyl or cycloalkyl ethers
    • C08B11/04—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • C08B11/10—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals
    • C08B11/12—Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals substituted with acid radicals substituted with carboxylic radicals, e.g. carboxymethylcellulose [CMC]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
    • C09D101/08—Cellulose derivatives
    • C09D101/26—Cellulose ethers
    • C09D101/28—Alkyl ethers
    • C09D101/286—Alkyl ethers substituted with acid radicals
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/64—Inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/08—Impregnated or coated fibreboard
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/26—Cellulose ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/26—Cellulose ethers
    • C08J2301/28—Alkyl ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium

Definitions

  • the present application relates to compositions having increased concentrations of carboxymethylcellulose (CMC). Also, the present application relates to methods of increasing the concentration of CMC in low-viscosity compositions.
  • CMC carboxymethylcellulose
  • CMC is an anionic water-soluble polymer that is used in a variety of industrial and consumer applications.
  • CMC generally is obtained from cellulose (e.g., from cotton linters, wood pulp, or other cellulosic sources) by substitution of at least a portion of the hydroxyl groups for carboxymethyl ether groups and may have a degree of substitution (“DS”) of as high as 3.0, and a molecular weight ranging from about 30,000 to 1,000,000 Daltons.
  • DS degree of substitution
  • coating compositions having high solids contents are preferable to improve quality and productivity, for example, by improving coating coverage and gloss while decreasing the amount of water that must be evaporated (i.e., thereby reducing drying energy) from coatings.
  • higher solids contents also are required for the solutions of raw materials used to prepare the coating composition.
  • the existing solutions of pre-dissolved CMC having a low solids concentration generally will not enable formulation of a high solids content coating composition (e.g. such as 70 wt %), and typically limit the amount of CMC that can be used in the coating composition required for paper coating.
  • a high solids content coating composition e.g. such as 70 wt %
  • mills would need to have handling systems for powders, adequate manpower to add the powder by hand, or a mixing system capable of imparting sufficient shear to disperse the powder throughout the solution.
  • existing solutions of pre-dissolved CMC having a high solids concentration generally produce high-viscosity solutions (e.g., greater than 5000 mPas, measured on a Brookfield RV at 100 rpm and 50-60 degrees Celsius) that are difficult to process on traditional equipment, e.g., in pumping or screening processes.
  • high-viscosity solutions e.g., greater than 5000 mPas, measured on a Brookfield RV at 100 rpm and 50-60 degrees Celsius
  • CMC also can be used as, or to make, a surface treatment, such as a barrier material.
  • Barrier materials containing CMC can be oil and grease resistant, oxygen resistant, or both.
  • Common film coating technologies used to form barrier materials in the shape of a film include a size press, a metering size press, and various curtain coating technologies. For each of these technologies, solution up-take is an important parameter that depends, at least in part, on the viscosity and/or solids content of the polymer solution that is used. Not wishing to be bound by any theory, it is believed that uniform barrier materials, especially films, result from a high enough coat weight, good film hold-out, or both. These properties may be more easily obtained by making a barrier material with CMC solutions of higher concentration.
  • Embodiments of the present description provide methods for increasing the concentration of CMC stock solution.
  • the method comprises dissolving a CMC and an alkali salt in water to obtain an alkali solution of CMC and optionally modifying the pH of the alkali solution of CMC to a pH from about 7.5 to about 11.
  • the CMC in some embodiments, has a degree of substitution less than about 0.9.
  • the CMC in certain embodiments, has a molecular weight less than about 300 kD.
  • the alkali solution of CMC comprises CMC in a concentration greater than about 9.8% by weight, has a pH of from about 7.5 to about 11, and has a viscosity of less than about 5,000 mPa.
  • the method for increasing the concentration of CMC stock solution comprises dry-blending CMC and an alkali salt to obtain a CMC mixture and dissolving the CMC mixture in water to obtain an alkali solution of CMC.
  • the CMC in some embodiments, has a degree of substitution less than about 0.9.
  • the CMC in certain embodiments, has a molecular weight less than about 300 kD.
  • the alkali solution of CMC may comprise CMC in a concentration greater than about 9.8% by weight, has a pH from about 7.5 to about 11, and has a viscosity of less than about 5,000 mPa.
  • the CMC mixture may comprise the alkali salt in a concentration greater than about 0.5% by weight of the CMC mixture.
  • embodiments of the present description include a high solids paper coating composition comprising a pigment and an alkali solution of CMC.
  • the alkali solution of CMC in some embodiments, comprises CMC in a concentration greater than about 9.8% by weight and an alkali salt in a concentration of at least 0.05% by weight.
  • the CMC in some embodiments, has a degree of substitution less than about 0.9.
  • the CMC in certain embodiments, has a molecular weight less than about 300 kD.
  • embodiments of the present description include a CMC stock solution comprising an alkali solution of CMC comprising water, CMC in a concentration greater than about 9.8% by weight, an alkali salt in a concentration of at least about 0.05% by weight.
  • the CMC in some embodiments, has a degree of substitution less than about 0.9.
  • the CMC in certain embodiments, has a molecular weight less than about 300 kD.
  • the alkali solution of CMC in embodiments, has a pH from about 7.5 to about 11, and has a viscosity of less than about 5,000 mPa.
  • FIG. 1 is a graph illustrating the viscosity of CMC solutions as a function of CMC concentration.
  • Standard CMC FF-5 (4% viscosity of 27 mPas, DS 0.7).
  • Experimental CMC FF-5 (98 wt %+2 wt % Na 2 CO 3 ).
  • Viscosity measurement Brookfield RV 100 rpm, 50° C.
  • CMC and dry-blend of CMC+Na 2 CO 3 were mixed with water using a wire-mixer for 90 minutes before measuring the viscosity.
  • FIG. 2A is a graph comparing the effect of various salts on CMC solution viscosity.
  • Standard CMC FF-5 (4% viscosity of 27 mPas, DS 0.7).
  • Viscosity measurement Brookfield RV 100 rpm, 60° C.
  • CMC and dry-blend of CMC+salt were mixed with water using a wire-mixer for 90 minutes before measuring the viscosity.
  • FIG. 2B is a graph comparing the effect of sodium carbonate and sodium chloride on CMC solution viscosity for CMC having a DS of 0.7 but a variable molecular weight. Viscosity Measurement Brookfield RV 100 rpm, 50° C.
  • FIG. 3 is a graph illustrating the effect of pH on a 20 wt % CMC solution's viscosity.
  • Standard CMC FF-5 (4% viscosity of 27 mPas, DS 0.7).
  • Experimental CMC FF-5 (96-98 wt %+2-4% of various alkali salts).
  • Viscosity measurement Brookfield RV 100 rpm, 60° C.
  • CMC and dry-blend of CMC+various alkali salts were mixed with water using a wire-mixer for 90 minutes before measuring the viscosity.
  • FIGS. 4 and 5 are graphs illustrating the effect of composition and shear rate on the viscosity of various CMC coating colors.
  • FIG. 6 is a graph illustrating the water retention properties of various coating colors.
  • FIG. 7 is a graph illustrating the optical properties of various coated papers with coating colors.
  • FIG. 8 is a graph depicting the oil-resistance of four barrier materials containing CMC over a range of coat weights.
  • Embodiments of the present description address the above-described needs by providing methods for increasing the concentration of CMC stock solutions.
  • the high concentration CMC stock solutions are suitable for use in high solids paper coatings.
  • the CMC stock solutions also can be used as or in surface treatment materials, such as barrier materials.
  • the methods generally comprise dry-blending CMC and alkali salt to obtain a CMC mixture and dissolving the CMC mixture in water to obtain an alkali solution of CMC comprising CMC in a concentration greater than about 9.8% by weight and an alkali salt in a concentration of at least about 0.05% by weight.
  • the alkali salt may be added either before or after dissolving the CMC in water to obtain the alkali solution of CMC.
  • the CMC desirably has a degree of substitution less than about 0.9 and a molecular weight less than about 300 kD.
  • stock solutions having high concentrations of CMC can be attained having a viscosity of less than about 5,000 mPa at a range of temperatures, depending on the concentration of the solution.
  • a stock solution having a high concentration of CMC can be attained having a viscosity of less than about 5,000 mPa in the range of about 50 to about 60 degrees Celsius.
  • the concentration that can be reached can depend on the molecular weight of the CMC.
  • a CMC having a lower molecular weight normally is limited to a concentration of less than 9.8% by weight due to the viscosity of the solution (i.e., a viscosity of greater than 5,000 mPa)
  • the use of alkali solutions of CMC in accordance with embodiments provided herein significantly decreases the viscosity of the solution as compared to solutions of CMC without the alkali salt, thereby allowing for use of higher concentrations of the CMC.
  • the method further comprises modifying the pH of the alkali solution of CMC to a pH from about 7.5 to about 11.
  • the alkali solution of CMC has a pH from about 7.5 to about 10.5.
  • the alkali solution of CMC has a pH of greater than about 8.0, greater than about 8.5, or greater than about 9.0. (See e.g., FIG. 3 ). Suitable methods for modifying the pH of the alkali solution of CMC are known to those skilled in the art.
  • the CMC has a degree of substitution from about 0.4 to about 0.9 and a molecular weight less than about 300 kD. In embodiments, the CMC has a degree of substitution from about 0.4 to about 0.9, from about 0.6 to about 0.9, or from about 0.7 to about 0.85. In embodiments, the CMC has a molecular weight less than about 300 kD, less than about 200 kD, less than about 150 kD, or less than about 100 kD.
  • the CMC used in embodiments of the present description also may be characterized by its viscosity and pH.
  • the CMC has a viscosity of less than about 2000 mPas for a 2% solution of the CMC at a temperature of about 25° C., a viscosity of less than about 400 mPas for a 2% solution of the CMC at a temperature of about 25° C., or a viscosity of less than about 100 mPas for a 2% solution of the CMC at a temperature of about 25° C.
  • the CMC is further characterized as having a pH of less than about 8 for a 1% solution of the CMC.
  • the CMC is further characterized as having a pH of less than about 9 for a 1% solution of the CMC.
  • the CMC desirably is present in the alkali solution in an amount sufficient to provide a concentration of greater than about 9.8% up to about 25%, a concentration of greater than about 10% up to about 25%, a concentration of greater than about 12% up to about 25%, a concentration of greater than about 15% up to about 25%, a concentration of greater than about 18% up to about 25%, or a concentration of greater than about 20% up to about 25%.
  • the alkali salt used in embodiments of the present description desirably comprises a base salt.
  • base salts include sodium carbonate, sodium bicarbonate, sodium sulfite, sodium hydroxide, sodium silicate, potassium hydroxide, potassium carbonate, potassium bicarbonate, calcium hydroxide, and combinations thereof.
  • the alkali salt is present in the alkali solution of CMC in an amount of at least about 0.05%.
  • the alkali salt is present in the alkali solution of CMC in an amount from about 0.05% to about 5.0% by weight, from about 0.05% to about 2.5% by weight, from about 0.05% to about 1.0% by weight, from about 0.1% to about 1.5%, from about 0.1% to about 1.0% by weight, from about 0.1% to about 0.5% by weight, from about 0.2% to about 1.0% by weight, or from about 0.2% to about 0.7% by weight.
  • the CMC stock solutions provided herein comprise an alkali salt at a concentration from about 0.1% to about 2.0%, and CMC at a concentration greater than about 9.8% up to about 20%. In other embodiments, the CMC stock solutions provided herein comprise an alkali salt at a concentration from about 0.1% to about 1.5%, and CMC at a concentration greater than about 12% up to about 20%
  • the alkali salt comprises a mixture of alkali salts, for example, sodium carbonate and either sodium sulfite, sodium bicarbonate, or a combination thereof.
  • the sodium sulfite, sodium bicarbonate, or combination thereof is present in the alkali solution of CMC in a concentration from about 0.1% to about 2% by weight while the total concentration of the alkali salts is less than about 5% by weight.
  • high solids paper coating compositions comprising an alkali solution of CMC, a pigment (e.g., inorganic pigments, such as calcium carbonate), and other additives known to those skilled in the art (e.g., organic binders, such as latex).
  • the alkali solutions of CMC comprise less than 0.5% by weight of the pigments for a coating composition having a solids content of greater than about 70% by weight.
  • the alkali solution of CMC comprises CMC in a concentration greater than about 9.8% by weight and alkali salt in a concentration of at least about 0.05% by weight, wherein the CMC has a degree of substitution less than about 0.9 and a molecular weight less than about 300 kD.
  • barrier materials made from or containing CMC.
  • Barrier materials made from or containing CMC can be used in combination with a matrix material, such as paper, board, etc., or can be stand-alone materials.
  • the barrier materials can be made into any size or shape, using any technique known in the art.
  • the barrier material containing CMC is a film.
  • the films are formed generally by employing an alkali solution of CMC and removing the solvent, such as by evaporation or heat-assisted evaporation.
  • the barrier materials made from or containing CMC can be resistant to a variety of materials.
  • the barrier materials can be oil or grease resistant, oxygen resistant, or both, which are features that typically depend on a barrier material's pore size, defects, such as pin-holes, or both.
  • the barrier properties of a barrier material also may depend on coat weight, film hold-out (if the material is a film), or both.
  • a high coat weight can be obtained, in some circumstances, by using a CMC solution that has a relatively high concentration, and the film hold-out can be improved by using CMC with high molecular weight.
  • These considerations can be balanced to produce a desirable barrier material, because a lower coat weight is acceptable, in some circumstances, if a CMC of higher molecular weight is used.
  • making a barrier material film from a CMC solution with a relatively high concentration can improve film hold-out because the wet film will enjoy faster immobilization.
  • the alkali solutions of CMC described herein can be used to optimize these factors, including the molecular weight of CMC and the concentration of the CMC solution.
  • the alkali solutions of CMC provided herein are characterized as having a viscosity that is substantially reduced as compared to a comparable solution of CMC without alkali salts.
  • the viscosity of the alkali solution of CMC comprising an alkali salt is less than about 50% that of a comparable solution of CMC without the alkali salt.
  • the viscosity of the alkali solution of CMC comprising an alkali salt is from about 20% to about 50% that of a comparable solution of CMC without the alkali salt.
  • the addition of an alkali salt increases the maximum concentration of CMC in an alkali solution of CMC from an upper limit of 12-15% CMC to an upper limit of 18-20%, or from an upper limit of about 10% to about 13-15%, or from an upper limit of 8% to about 9.8-12%.
  • CMC solutions were prepared using FF-5 (4% viscosity of 27 mPas (Brookfield LV 60 rpm, 25° C.), MW 50 kD, DS 0.7) grade CMC at four CMC concentrations: approximately 5, 13, 17, and 20 percent CMC.
  • 2% Na 2 CO 3 was pre-blended with the CMC to produce the “experimental” solutions. The viscosity of each solution was measured and the results can be seen in FIG. 1 . Viscosity measurement: Brookfield RV 100 rpm, 50° C. CMC and dry-blend of CMC+salt were mixed with water using a wire-mixer for 90 minutes before measuring the viscosity.
  • FIG. 1 shows a decrease in solution viscosity for the Experimental solutions as compared to the Standard solutions with identical CMC concentration. At the highest CMC concentration, 20%, the standard solution had a viscosity of near 9000 mPas while the Experimental solution containing the Na 2 CO 3 had a viscosity of near 3500 mPas. These results demonstrated the ability to achieve highly concentrated CMC solutions having a viscosity of no more than 5000 mPas, the handling limit for these solutions. However, the handling limit depends on the machinery used and temperature.
  • CMC solutions Various concentrations of alkali salts and NaCl were added to CMC solutions at 20% CMC concentration to produce CMC solutions as shown in Table 1.
  • Reference CMC FF-5 (4% viscosity of 27 mPas, DS 0.7).
  • Viscosity measurement Brookfield RV 100 rpm, 60° C. CMC and dry-blend of CMC+salt were mixed with a wire-mixer to water for 90 minutes before measuring the viscosity. Viscosity measurements were performed on the solutions, the results of which are shown in Table 1 and FIG. 2 .
  • the solution viscosity increased with increasing NaCl concentration.
  • the addition of alkali salt resulted in a decrease in solution viscosity, as compared to the solution without salt and as compared to the solution with NaCl.
  • FIG. 2B shows the effects of a neutral salt and alkali salt on CMC having a DS of 0.7 and a molecular weight of 50 kD, 200 kD, or 350 kD
  • neutral salt (NaCl) addition typically increased solution viscosity of CMC having a lower molecular weight (i.e., 50 kD and 200 kD).
  • alkali salt (Na 2 CO 3 ) addition more significantly decreased solution viscosity of CMC at a lower molecular weight.
  • CMC solutions were prepared using various grades of CMC described in Table 2 below both with and without an alkali salt.
  • the CMC and dry-blend of CMC+alkali salt (2% sodium carbonate) were mixed with a wire-mixer in water for 90 minutes before measuring the pH and the viscosity.
  • Table 2 shows that the solutions containing lower molecular weight CMC (i.e., in the present example less than 200 kD) displayed the largest decreases in viscosity as compared to similar solutions not containing a salt. Further, at lower molecular weight CMC grades, the pH of the alkaline solution is significantly higher than that of the solution not containing a salt.
  • CMC lower molecular weight CMC
  • the effects of pH on the viscosity of CMC solutions was further characterized by measuring the viscosity of a solution of CMC (FF-5, 20 wt % CMC) both with and without alkali salts.
  • the viscosity was measured using a Brookfield RV at 100 rpm and 60° C. after mixing the dry-blend with water for 90 minutes.
  • FIG. 3 shows that as the pH increased with the addition of alkali salts, the viscosity of the CMC solution decreased.
  • the data point representing the sample having a pH of 6 and a viscosity of 8500 did not include an alkali salt; the remaining samples included an alkali salt.
  • the data points near a pH of 8 were two collected from two different solutions to demonstrate repeatability.
  • the rheology of coating color formulation was evaluated using a Brookfield RV at 100 rpm, a Hercules HI-shear viscometer DV-10 (shear rate 100000 l/s), and an ACAV A2-capillary viscometer (shear rate 1000000 l/s).
  • Static water retention (AA-GWR) was measured using a constant volume of 10 mL of the coating color formulation (membrane pore size of 5 ⁇ m, 30 kPa pressure, 2 minutes).
  • the paper coating was carried out with a laboratory coater (DT Paper Science) at a speed 70 m/min.
  • the coating color formulation was applied to a paper web by the roll applicator and the excess was metered away by a stiff blade.
  • the base web was a pre-coated fine paper (grammage 100 g/m 2 ) and the coat weight of the tests was 8-9 g/m 2 .
  • the water retention properties are illustrated in FIG. 6 . There was no significant difference in water retention properties for the CMC containing coating color formulations with or without the sodium carbonate. In addition, as illustrated in FIG. 7 , the use of sodium carbonate did not significantly decrease the whiteness value of the coated paper.
  • barrier materials containing CMC were made and evaluated using a KIT test to determine their oil resistance. The oil resistance is better for those barrier materials with higher KIT test scores.
  • the barrier materials were prepared by forming predissolved solutions of CMC, with and without alkali salts, having different concentrations.
  • the predissolved solutions were applied by hand-rods on a surface sized 80 g/m 2 paper.
  • the materials were dried with an air dryer.
  • the four barrier materials containing CMC and their characteristics are listed in the following table:
  • FIG. 8 depicts the KIT values of the four materials over a range of coat weights.
  • the data in FIG. 8 indicated that the embodiments described herein provide the possibility of using CMC solutions having a wider range of concentrations to make barrier materials.
  • barrier material number 2 in this example which was made with a CMC solution of relatively high concentration, had better film hold-out than the other samples, and required less drying time.

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JP2019156886A (ja) * 2018-03-07 2019-09-19 新機能科学株式会社 コーティング用組成物
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Citations (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896038A (en) 1924-04-04 1933-01-31 Bradley Mckeefe Corp Manufacture of pulp, etc.
US1941277A (en) 1930-08-14 1933-12-26 Burgess Lab Inc C F Manufacture of ether derivatives of carbohydrates like cellulose
US2087237A (en) 1934-08-17 1937-07-20 Du Pont Sizing fabric
US2154220A (en) 1936-09-26 1939-04-11 Kalle & Co Ag Process for producing coatings on plaster or other surfaces
US2190445A (en) 1933-07-25 1940-02-13 Du Pont Regenerated cellulose ether product
US2216845A (en) 1936-09-28 1940-10-08 Du Pont Manufacture of paper
US2331858A (en) 1941-03-06 1943-10-12 Dow Chemical Co Preparing solutions of cellulose glycollic acid salts
US2689184A (en) 1952-06-04 1954-09-14 Reardon Company Wallpaper paste
US2768143A (en) 1953-03-31 1956-10-23 Hercules Powder Co Ltd Water-soluble gum having improved properties
US2775970A (en) 1954-06-08 1957-01-01 American Tobacco Co Cigarette paper
US3068120A (en) 1960-08-17 1962-12-11 Jacobson Albert Textile sizing spray and method
US4225636A (en) 1979-03-08 1980-09-30 Olin Corporation High porosity carbon coated cigarette papers
US4288245A (en) 1975-11-20 1981-09-08 Akzo Nv Process for producing agglomerates of metal containing ores and the product of the process
JPS62132703A (ja) 1985-12-05 1987-06-16 Hitachi Zosen Corp フツ化アルミニウムの熱加水分解用反応装置
US4883536A (en) 1988-08-05 1989-11-28 Aqualon Company Suspension of water-soluble polymers in aqueous media containing dissolved salts
US4883537A (en) * 1988-12-28 1989-11-28 Aqualon Company Aqueous suspension of carboxymethylcellulose
US5028263A (en) 1988-08-05 1991-07-02 Aqualon Company Suspension of water-soluble polymers in aqueous media containing dissolved salts
US5080717A (en) * 1991-01-24 1992-01-14 Aqualon Company Fluid suspensions of polysaccharide mixtures
US5268466A (en) * 1991-11-20 1993-12-07 Aqualon Company Water soluble polymer suspensions in dibasic potassium phosphate
US5354424A (en) 1989-02-10 1994-10-11 Rha Chokyun Paper composition and methods therefor
US5521234A (en) 1992-03-26 1996-05-28 Aqualon Company Fluidized polymer suspension (FPS) for continuous coating composition manufacture
US5543372A (en) 1993-04-02 1996-08-06 Thiele Kaolin Company Stable high solids slurries of structured clay materials and process for the manufacture thereof
US5722433A (en) 1995-08-09 1998-03-03 Mishima Paper Co., Ltd. Water-dispersible sheet for cigarettes and cigarette using the same
US5785747A (en) * 1996-01-17 1998-07-28 Great Lakes Chemical Corporation Viscosification of high density brines
US5830548A (en) 1992-08-11 1998-11-03 E. Khashoggi Industries, Llc Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets
US5849153A (en) 1995-08-09 1998-12-15 Mishima Paper Co., Ltd. Water-dispersible sheet and cigarette using the same
US6132557A (en) 1997-09-08 2000-10-17 Uni-Charm Corporation Water-disintegratable fibrous sheet containing fibers having different fiber lengths and process for producing the same
JP2002266285A (ja) 2001-02-27 2002-09-18 Unitika Chem Co Ltd 紙塗工剤および塗工紙の製造方法
US6547927B1 (en) 1999-09-30 2003-04-15 Uni-Charm Corporation Water-decomposable fibrous sheet containing water-insoluble carboxymethyl cellulose
CN1450125A (zh) 2003-05-09 2003-10-22 郭辉 水性无机涂料
US6712897B2 (en) * 2001-05-21 2004-03-30 National Gypsum Properties, Llc. Pre-blend composition, and method of making joint compound using same
US6958108B1 (en) 1998-04-30 2005-10-25 M-Real Oyj Method of producing a fiber product having a strength suitable for printing paper and packaging material
US7108744B2 (en) 2003-09-15 2006-09-19 Hercules Incorporated Tape joint compounds with CMC thickener system
US7285182B2 (en) 2002-03-19 2007-10-23 Ciba Specialty Chemicals Corporation Composition for surface treatment of paper
US20080031961A1 (en) 2006-08-01 2008-02-07 Philip Andrew Cunningham Benefit agent containing delivery particle
US7371279B2 (en) 2005-06-30 2008-05-13 Dow Wolff Cellulosics Gmbh Cellulose ether composition
CN101210398A (zh) 2007-12-24 2008-07-02 上海东升新材料有限公司 一种用于无面浆涂布纸底涂、中涂和面涂的涂料
CN101250020A (zh) 2008-03-26 2008-08-27 山东省科学院新材料研究所 造纸污泥专用脱水剂的制备方法与应用
US7531600B1 (en) 2003-11-12 2009-05-12 Kroff Chemical Company Water-in-oil polymer emulsion containing microparticles
CN101879479A (zh) 2010-06-08 2010-11-10 西北有色地质研究院 一种榴辉岩型金红石矿的选矿方法
US8685158B2 (en) * 2010-03-15 2014-04-01 Ciments Francais Water retention agent for cementitious compositions and cementitious compositions containing same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2686195B2 (ja) 1991-12-04 1997-12-08 信越化学工業株式会社 改質キサンタンガムおよびキサンタンガムの改質方法
GB2284421A (en) * 1993-12-02 1995-06-07 Courtaulds Plc Treatment of cellulose
JP3741751B2 (ja) 1995-07-11 2006-02-01 信越化学工業株式会社 キサンタンガムの改質方法
WO2006064173A1 (en) 2004-12-15 2006-06-22 Csm Nederland B.V. Water-dispersible xanthan gum containing composition
CN101220099B (zh) * 2008-01-31 2011-01-26 重庆力宏精细化工有限公司 高粘度羧甲基纤维素钠的制备方法
CN101445561B (zh) * 2008-06-20 2011-01-05 淄博宜龙化工有限公司 一种高粘度羧甲基纤维素的制法和制得的产品
US9181659B2 (en) * 2011-10-17 2015-11-10 Cp Kelco Oy Compositions having increased concentrations of carboxymethylcellulose

Patent Citations (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896038A (en) 1924-04-04 1933-01-31 Bradley Mckeefe Corp Manufacture of pulp, etc.
US1941277A (en) 1930-08-14 1933-12-26 Burgess Lab Inc C F Manufacture of ether derivatives of carbohydrates like cellulose
US2190445A (en) 1933-07-25 1940-02-13 Du Pont Regenerated cellulose ether product
US2087237A (en) 1934-08-17 1937-07-20 Du Pont Sizing fabric
US2154220A (en) 1936-09-26 1939-04-11 Kalle & Co Ag Process for producing coatings on plaster or other surfaces
US2216845A (en) 1936-09-28 1940-10-08 Du Pont Manufacture of paper
US2331858A (en) 1941-03-06 1943-10-12 Dow Chemical Co Preparing solutions of cellulose glycollic acid salts
US2689184A (en) 1952-06-04 1954-09-14 Reardon Company Wallpaper paste
US2768143A (en) 1953-03-31 1956-10-23 Hercules Powder Co Ltd Water-soluble gum having improved properties
US2775970A (en) 1954-06-08 1957-01-01 American Tobacco Co Cigarette paper
US3068120A (en) 1960-08-17 1962-12-11 Jacobson Albert Textile sizing spray and method
US4288245A (en) 1975-11-20 1981-09-08 Akzo Nv Process for producing agglomerates of metal containing ores and the product of the process
US4225636A (en) 1979-03-08 1980-09-30 Olin Corporation High porosity carbon coated cigarette papers
JPS62132703A (ja) 1985-12-05 1987-06-16 Hitachi Zosen Corp フツ化アルミニウムの熱加水分解用反応装置
US4883536A (en) 1988-08-05 1989-11-28 Aqualon Company Suspension of water-soluble polymers in aqueous media containing dissolved salts
US5028263A (en) 1988-08-05 1991-07-02 Aqualon Company Suspension of water-soluble polymers in aqueous media containing dissolved salts
US4883537A (en) * 1988-12-28 1989-11-28 Aqualon Company Aqueous suspension of carboxymethylcellulose
US5354424A (en) 1989-02-10 1994-10-11 Rha Chokyun Paper composition and methods therefor
US5080717A (en) * 1991-01-24 1992-01-14 Aqualon Company Fluid suspensions of polysaccharide mixtures
EP0496269A2 (en) 1991-01-24 1992-07-29 Aqualon Company Process for preparing fluid suspensions of polysaccharide mixtures
US5268466A (en) * 1991-11-20 1993-12-07 Aqualon Company Water soluble polymer suspensions in dibasic potassium phosphate
US5521234A (en) 1992-03-26 1996-05-28 Aqualon Company Fluidized polymer suspension (FPS) for continuous coating composition manufacture
US5830548A (en) 1992-08-11 1998-11-03 E. Khashoggi Industries, Llc Articles of manufacture and methods for manufacturing laminate structures including inorganically filled sheets
US5543372A (en) 1993-04-02 1996-08-06 Thiele Kaolin Company Stable high solids slurries of structured clay materials and process for the manufacture thereof
US5849153A (en) 1995-08-09 1998-12-15 Mishima Paper Co., Ltd. Water-dispersible sheet and cigarette using the same
US5722433A (en) 1995-08-09 1998-03-03 Mishima Paper Co., Ltd. Water-dispersible sheet for cigarettes and cigarette using the same
US5785747A (en) * 1996-01-17 1998-07-28 Great Lakes Chemical Corporation Viscosification of high density brines
US6132557A (en) 1997-09-08 2000-10-17 Uni-Charm Corporation Water-disintegratable fibrous sheet containing fibers having different fiber lengths and process for producing the same
US6958108B1 (en) 1998-04-30 2005-10-25 M-Real Oyj Method of producing a fiber product having a strength suitable for printing paper and packaging material
US6547927B1 (en) 1999-09-30 2003-04-15 Uni-Charm Corporation Water-decomposable fibrous sheet containing water-insoluble carboxymethyl cellulose
JP2002266285A (ja) 2001-02-27 2002-09-18 Unitika Chem Co Ltd 紙塗工剤および塗工紙の製造方法
US6712897B2 (en) * 2001-05-21 2004-03-30 National Gypsum Properties, Llc. Pre-blend composition, and method of making joint compound using same
US7285182B2 (en) 2002-03-19 2007-10-23 Ciba Specialty Chemicals Corporation Composition for surface treatment of paper
CN1450125A (zh) 2003-05-09 2003-10-22 郭辉 水性无机涂料
US7108744B2 (en) 2003-09-15 2006-09-19 Hercules Incorporated Tape joint compounds with CMC thickener system
US7531600B1 (en) 2003-11-12 2009-05-12 Kroff Chemical Company Water-in-oil polymer emulsion containing microparticles
US7371279B2 (en) 2005-06-30 2008-05-13 Dow Wolff Cellulosics Gmbh Cellulose ether composition
US20080031961A1 (en) 2006-08-01 2008-02-07 Philip Andrew Cunningham Benefit agent containing delivery particle
CN101210398A (zh) 2007-12-24 2008-07-02 上海东升新材料有限公司 一种用于无面浆涂布纸底涂、中涂和面涂的涂料
CN101250020A (zh) 2008-03-26 2008-08-27 山东省科学院新材料研究所 造纸污泥专用脱水剂的制备方法与应用
US8685158B2 (en) * 2010-03-15 2014-04-01 Ciments Francais Water retention agent for cementitious compositions and cementitious compositions containing same
CN101879479A (zh) 2010-06-08 2010-11-10 西北有色地质研究院 一种榴辉岩型金红石矿的选矿方法

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
Anonymous "CMC Knowledge", http://www.lihong.net/en/RD/PACCMCknowledge/CMCknowledge/tabid/138/Default.aspx (2005).
Aqualon Sodium Carboxymethylcellulose, Physical and Chemical Properties, Hercules Incorporated, (1998).
Ghannam et al., Rheological Properties of Carboxymethyl Cellulose, University of Saskatchewan, (1996), pp. 289-301.
International Search Report and Written Opinion for PCT/EP2012/070545 mailed (Feb. 20, 2013).
Kastner et al., Structure and Solution Properties of Sodium Carboxymethylcellulose, Elsevier, Colloids and Surfaces 123-124 (1997), pp. 307-328.
Seltzer, et al., Carboxymethylcellulose, Chapter 4, pp. 4-1-4-28, Handbook of Water Soluble Gums, McGraw-Hill, (1980).
Yang et al, "Viscosity properties of sodium carboxymethylcellulose solutions". Cellulose (2007) 14., pp. 409-417. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160009871A1 (en) * 2011-10-17 2016-01-14 Cp Kelco Oy Compositions Having Increased Concentrations of Carboxymethylcellulose
US9963558B2 (en) * 2011-10-17 2018-05-08 Cp Kelco Oy Compositions having increased concentrations of carboxymethylcellulose

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MX342842B (es) 2016-10-13
EP2768864A1 (en) 2014-08-27
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BR112014003890A2 (pt) 2017-06-13
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US20160009871A1 (en) 2016-01-14
US20130192492A1 (en) 2013-08-01
CN103814049A (zh) 2014-05-21
ES2509966T3 (es) 2018-11-27
DE12783545T1 (de) 2014-11-13
BR112014003890B1 (pt) 2020-12-15
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